What is this?

[Daniel306]

I fitted a ph3 dash loom in my car(Ph2 Td), the ph3 black box works when i press the button on the rf remote and the light dims but the doors dont lock/unlock, so i got the loom for the doors, have taken my carpet out to change the loom and i found that box, the new loom(ph3 Hdi) i am fitting has two of the plugs for the grey box one each side?


+1 on that Rep